Master of Squirrel-Fu said:
That'd be hard considering Inner moka wouldn't have all that much time with who it is you're pairing her with, she only really comes out to beat the shit out of whoevers around at the time.
There's also the fact she doesn't seem the type to even care about love. I would mostly see her handling romance by going up to whoever the poor bastard is and declaring that he belongs to her (and that he should now call her mistress), hell what kind of guy would she be going after? I see Either someone wimpy, but interesting enough warent her attention, to make her bitch, or some battle obsessed maniac who could give even her a hard time, to fight against.
The former probably wouldn't work because that's the kind of guy (Outer)Moka would probably fall for first and the latter Moka would likely just avoid.
I suppose that, theoretically, it could be done using someone who regularly uses telepathy. Communication wouldn't be much of a problem in that case as the interaction could entirely bypass outer Moka to the point that she may not even be aware that her inner self is conversing with anyone.
Provided, of course, that they are separate personalities and not some utterly screwed up ... thing where inner Moka is just outer with some elements of her personality being suppressed, though I doubt that (and that they aren't split personalities).
Psychologically, the romance could be done fairly simply. A longer period of communication without inner Moka actually coming out to play would foster such emotions quite easily since we have to keep in mind that the person she's conversing with is literally the only person she can converse with (outside the, well, other Moka, but I never really got the impression that the two talked much ... or at all).
Of course, that would hardly be love and would also be exploitative, evil and not very nice, but nobody said it had to be
nice love story.